A SOFTSELECT/HARDSELECT whose rule value is a library.member.column reference
takes its list from that column, and getdata.sas builds it with cats() and then
orders it by the column itself. The mock sent the raw stored value instead, so a
numeric special missing reached the client in its period form (".a") rather than
as the bare letter cats() produces, and it sat in row order rather than below
every number. It now does both, so a dropdown sourced from a column reads the
way the real one does.
DEMO_01 gains a STATUS column carrying a SOFTSELECT over its own column, with
one row holding a special missing, so the dropdown can be demonstrated listing
that missing alongside the ordinary values.
The clip spec records that beat, hovers both changed cells on the review screen
so the value each replaced is on screen, and cuts the waits that were only
letting a page or a modal settle.